baber/WOPTO huggingface dataset:
Patent GB-737581-A (GB)
Title: Improvements relating to dry-powder fire-extinguishing apparatus
Inventor: CLIFFORD WILFRED JAMES
IPC: A62C13/00
Filed: 1952-10-24
Abstract: 737,581. Fire-extinguishers. PYRENE CO., Ltd. Oct. 26, 1953 [Oct. 24, 1952], No. 26794/52. Class 47. In a fire-extinguisher in which dry powder 6 is expelled from a container 1 by gas under pressure from a cylinder 7, the outlet 9 from the cylinder leads both to a single dip tube 10 and to a discharge pipe 11 having a valve 14. In operation, gas is released from the cylinder 7 to the container 1 and then on opening the valve 14, the powder is discharged from the container. Specification 730,406, [Group XXIX], is referred to.
Patent GB-654904-A (GB)
Title: Improvements in or relating to the silencing of the exhaust of gas turbine engine installations
Inventor: MURRAY FREDERICK REGINALD
IPC: B64F1/26
Filed: 1948-10-14
Abstract: 654,904. Silencing gaseous currents. ROLLS-ROYCE, Ltd. Oct. 14, 1948, No. 26810. [Class 7(ii)] A silencer for a gas 'turbine installation when running on the ground, either under test or operating a wind tunnel, comprises overlapping baffles 14 made of sound-absorbing materials and arranged to reflect the sound waves 13 emanating from the exhaust nozzle 10 and to induce a layer of cold air around the jet 11. The edges of the baffles adjacent the exhaust jet lie approximately in a'line corresponding with the edge of the jet cone. The baffles may be transverse to the sound waves as shown, or parallel to the jet axis 12. In addition to the two sets of baffles, seen in plan view, a further set may be provided above the jet. Alternatively they may be formed arch-shaped or annular. The baffles may be curved and have their left-hand ends only parallel to the jet axis 12. They are preferably made of perforated sheet-metal casings filled with sound-absorbing material and have a thickness which is one quarter of the lowest wave-length they have to absorb. The device may be mounted on a wheeled trolley. The nozzle' 10 may be elliptical or rectangular with the major axis parallel to the ground which is preferably covered with a thick layer of sound absorbing material.
Patent GB-207934-A (GB)
Title: Improvements in or relating to the control of hydraulic steering gear pumps
IPC: B63H25/28
Filed: 1922-10-04
Abstract: 207,934. Hastie & Co., Ltd., J., and Riddell, W. G. Oct. 4, 1922. Regulating delivery by closing suction and delivery valves. - Steering gears for ships of the type where electrically-driven pumps actuate hydraulic rams are provided with a hydraulic relay system above the pump valves and in which is an automaticallyclosable valve whereby the pump valves close on rise of pressure due to closing the relay valve, the latter being actuated by hand or by a solenoid in circuit with the electric motor. Electric motors drive pumps 10, 11, Fig. 1, which are connected by mains 12, 13 with the ram cylinders 14, 15. The valves 19, 20 of the pump 10 and valves 21, 22 of the pump 11 have their chests connected by pipes with relay valves 28 forming part of relay systems 30, 31 which communicate with a common tank. Each pump valve is of the construction as shown in Fig. 2, the stem 33 having a control spring 35 and the head having a cylindrical enlarged extension 40 which slides freely in a bore communicating with the relay valve 28. The passage 39 is coupled to the pump and the passage 38 leads to the mains to the cylinders 14, 15. The relay valve 28 has a closure spring and a solenoid 43 in circuit with the motor leads whereby the valve is held open when the motor is switched on. When the valve 28 is open the pump is able to operate the steering gear, since the liquid pressure is able to raise the valve 19 and establish communication between the passages 38, 39. Leakage past the extension 40 escapes freely through the open valve 28. When the driving current fails or is cut off, the valve 28 closes and the accumulated leakage above the portion 40 reaches a pressure sufficient to close the valve 19 and cut the pump off from the hydraulic mains. Specification 21932/09, [Class 114, Ships &c., Propelling &c.], is referred to.
Patent GB-632880-A (GB)
Title: Improvements in uptwisting machines for textile threads
IPC: D01H1/241
Filed: 1947-10-07
Abstract: 632,880. Textile uptwisting machines. LLOYD (ROCHDALE), Ltd., R. A., and LLOYD, R. A. Oct. 7, 1947, No. 26900. [Class 120 (ii)] An uptwisting machine in which delivery spindles C are driven by contact with a common band C<SP>1</SP> has, between each pair of upright supports, a single beam B and spindle brackets c are secured to the side flanges of the beam. Each beam B also carries a horizontal pulley B<SP>1</SP> to engage the inner faces of the driving band C<SP>1</SP> on either side of the machine, in order to maintain the band in contact with the spindles. The shafts carrying the driving rollers E<SP>1</SP> for the take-up bobbins H may be made in lengths corresponding to the distance betwen the upright supports A and arranged for ready disconnection and removal. Each support A carries a short shaft f, Fig. 4, having dogs or teeth f<SP>1</SP> to engage with corresponding dogs or teeth e on a driving roller shaft E. The ends of 'the two shafts are surrounded by a sleeve e<SP>1</SP> secured by a set-screw. Specification 599,938 is referred to.
Patent GB-713030-A (GB)
Title: Improvements in or relating to a method of knitting
IPC: D04B1/26
Filed: 1951-11-16
Abstract: 713,030. Knitting. HEMPHILL CO. Nov. 16. 1951 [Nov. 17, 1950], No. 26961/51. Class 74(2) A method of knitting - plain hosiery fabric ornamented by lines of contrasting colour comprises knitting a course 3 of a body yarn in which the yarn is floated, as at 18, in at least one wale 9, knitting a second yarn, as at 17, in the wale 9 or wales in which the float occurs, the second yarn being-interknitted with a loop 16 or loops of a preceding course 2 in these wales and also knitting the second yarn, as at 20, in a wale 10 or wales in which the body yarn is knitted, as at 21. Thereafter the body yarn is knitted for a second course 4 but is floated as at 19, in the wale 10 or wales containing the second yarn interknitted with the first course of the body yarn. The sequence is repeated as desired. The method is intended to be carried out by reciprocatory knitting on a circular machine The inserted yarn may extend across a number of wales in which case they may be offset by one or more wales for each course.
Patent GB-348984-A (GB)
Title: Improvements in variable-speed gearing for bicycles
IPC: B62M9/124
Filed: 1930-09-09
Abstract: 348,984. Cycle driving-transmissions. BOEUF, M. and RUDELLI, C., 6, Avenue du Prado, Marseilles, France. Sept. 9, 1930, No. 26966. [Class 136 (ii).] Variable-speed gearing for bicycles, of the type in which the driving-chain is moved laterally to engage sprocket pinions of different sizes, comprises two chain guiding and tensioning pinions 8, 9 mounted between two plates 6, 7, which prevent the chain from leaving the pinions. The plate 6 is provided with a tube 5 telescoping into a tube 2, which is fixed, as by nuts 3, to a support 1 on the cycle frame, the chain being shifted bylateral movement of the plates 6, 7 and pinions 8, 9, which is effected in one direction by means of a Bowden wire 11 &c. connected to a hand-lever, and in the other direction by a spring 10. The tension of the chain is maintained by means of a tension spring 13 acting on the pinion carrier 6, 7. In the event of the chain becoming clogged with mud, undue oscillation of the pinion-carrier 6, 7 may be prevented by engaging a projection 14 with a slot 15 in the support 1. The lower pinion 9 may have truncated teeth.
Patent GB-1016051-A (GB)
Title: Process for preparation of cellular acrylic polymer synthetic filaments
IPC: D01F6/18
Filed: 1963-07-08
Abstract: 1,016,051. Wet spinning polyacrylonitrile. TOGO RAYON KABUSHIKI KAISHA. July 8, 1963 [July 13, 1962; Feb. 13, 1963; Feb. 25, 1963], No. 26997/63. Heading B5B. A polyacrylonitrile solution containing a liquid organic additive boiling within the range 20‹ to 350‹ C., preferably 30‹ to 150‹ C., and which is a refined petroleum distillate fraction, an aliphatic, cycloaliphatic or aromatic hydrocarbon, an ether, a thioether or a carboxylic acid containing at least 5 carbon atoms in the molecule on a monohydric alcohol containing at least 5 carbon atoms in the molecule is wet spun into a coagulating liquid in which the solubility of the additive does not exceed 20% by weight and the resulting filaments are drawn and dried. The proportion of additive in the spinning solution may be 0À5-20%, preferably 1-5% by weight based on the acrylic polymer. The coagulating liquid may be a mixture of a solvent for the polymer and water. The drawing of the filaments may be effected in a mixture of a solvent for the polymer and a liquid coagulant. The drying of the filaments may be effected in a current of gas at 50-98‹ C. and a relative humidity of 30-80%. The gaseous current may contain the vapour of at least one hydrocarbon and/or alcohol boiling below 200‹ C. The gaseous current may contain 5-100% by volume of the vapour and may be at a temperature of 60-200‹ C., preferably 80-150‹ C. The filaments obtained have a " cellular "  structure, i.e. they contain voids. The acrylic polymer contains at least 85 mol. per cent of acrylonitrile, and may be a copolymer containing 0À1-2À0 mol. per cent of a monomer having one or more hydrophilic groups in the molecule and/or other monomers copolymerizable with acrylonitrile.
Patent GB-734481-A (GB)
Title: Improvements in or relating to apparatus for hardness testing
IPC: G01N27/72
Filed: 1949-10-20
Abstract: 734,481. Magnetic tests. MINISTER OF SUPPLY. Oct 20, 1949, No. 27012/49. Class 37. [Also in Group XXX] Articles to be sorted in accordance with their hardness are passed through a magnetic field and a reversed magnetic field, their residual magnetism controlling sorting mechanism. The articles, e.g. armour-piercing bullets, are fed in succession into a non-magnetic tube 4, Fig. 6, and, falling under gravity pass into the field of an electromagnet 7 ; after making a few heavily damped oscillations, the article is held between the pole-pieces until the electromagnet is deenergized ; the article then falls through a constantly energized solenoid 8 providing a reversed field; a search coil 9 located within the solenoid 8 is energized in accordance with the residual magnetism of the object and actuates a relay controlling a shutter 11 to permit the article to fall into an " accept " bin or deflect it into shoot 12 to the " reject " bin. The electromagnet 7 is energized by contacts on the article-feeding mechanism. Bullets to be tested are dropped into a hopper 13, Fig. 3, in which a disc 15 having circumferential grooves 16 rotates ; the disc 15 is protected by a fixed disc 19 from the weight of the bullets not in the grooves ; the disc is continuously rotated and carries the bullets to a shoot 14, a shutter 20 being reciprocated by arm 21 to allow the bullets to fall into shoot 14 ; the shoot has jaws 23, 24, Fig. 4, which compel the bullet to fall nose first into a portion of the shoot having a leaf spring 25 which holds the bullet until the reciprocation of arm 21 withdraws the spring and allows the bullet to fall ; the bullets thus all fall from the same position to give uniform testing conditions.
Patent GB-945258-A (GB)
Title: Improvements in or relating to arches
IPC: E21D11/04
Filed: 1960-08-04
Abstract: 945,258. Tunnel linings. M. J. GLEESON. July 18, 1961 [Aug. 4, 1960], No. 27124/60. Heading E1F. In a concrete arch segment having prestressing wires 10 extending between anchor plates 7, 8 at or adjacent the ends of the segment, and reinforcing means 9A resisting forces transverse to the segment, the wires 10 are not bonded to the concrete. Segments 1, 2 (Fig 5) abut at the anchor plates 8 which have interengaging projections 19 and sockets 18. The wires 10 are enclosed in rubber or plastics 15, and have their ends fixed to the anchor plates by collets. Each segment may have rubber joints intermediate its end, and rubber may be inserted between adjacent segments. The segments are of I section but in modifications the segments are each formed by two segments of channel section arranged as an I or box section. The arches may be packed at the crowns and shoulders, may retain concrete lagging between the projections, or may support a complete lining. Figs. 7, 8 show a composite arch formed by eight segments held together by bolts passing through holes 32. The interior and top of the arch is lined with steel plates 33, 36. The top of the arch is packed with rubble and old timber 41, and the sides are packed with concrete 42 attached to the arch by bolts 51, 52, 53. Two spaced composite arches may support concrete lagging.
Patent GB-1104668-A (GB)
Title: An improved method of separating weak repetitive electrical signals from random signals
IPC: G06G7/14
Filed: 1965-06-25
Abstract: 1,104,668. Recording and playback. MICROWAVE INSTRUMENTS Ltd., and J. BILBROUGH. 22 June, 1966 [25 June, 1965], No. 27150/65. Heading G5R. Weak repetitive signals (e.g. from an electron spin resonance spectrometer) are separated from random electrical noise by repeatedly recording the signals and noise together on an endless magnetic track (e.g. on a rotating drum, disc, or annulus) which is displaced in synchronism with the repetition frequency of the signals and partially erasing the record prior to each repetition of the recording cycle. The repetitive signals are always recorded on the same portion of the track, whereas the random noise signals tend to cancel each other out. An insert of magnetically susceptible material or a small permanent magnet may be incorporated in the track to provide a reference signal for controlling synchronism between the displacement of the track and the repetition of the signals.
Patent GB-654023-A (GB)
Title: Dyeing process and preparations therefor
IPC: D06P3/20
Filed: 1948-10-19
Abstract: Wool is dyed with acid dyeing chromiferous azo dyestuffs which contain an o-amino-o1-oxyazo group in the presence of an aldehyde which contains an ionizable acid group.  The wool may, according to a modification, be pretreated with the aldehyde by applying it from a bath containing an acid, preferably sulphuric acid.  In examples: (1) wool is dyed from a bath containing the chromium compound of the dyestuff 5-nitro-2-amino-1-oxybenzene--> 2-aminonaphthalene-6-sulphonic acid, sodium sulphate, sulphuric acid and the mono sodium salt of benzaldehyde-2,5 (or 2,4-) disulphonic acid; (2) wool is dyed from a bath containing the chromium compound of 4-chloro-2-amino-1 - oxybenzene - 6 - sulphonic acid-->2-aminonaphthalene, sodium sulphate, sulphuric acid and the sodium salt of benzaldehyde-3-sulphonic acid; (3) the chromium compound of 5 - nitro - 2 - amino - 1 - oxybenzene-->2-aminonaphthalene-6-sulphonic acid is mixed with sodium benzaldehyde-3-sulphonate, and the preparation is added to water together with sodium sulphate and sulphuric acid to form a dyebath for dyeing wool ; (4) wool is dyed from a bath containing the chromium compound of 4-chloro-2-amino-1-oxybenzene -->2 - aminonaphthalene - 6 - sulphonic acid, sodium sulphate, sulphuric acid and benzaldehyde-2-carboxylic acid; (5) wool is dyed from a bath containing the chromium compound of 5 - nitro - 2 - amino - 1 - oxybenzene--->2-aminonaphthalene-6-sulphonic acid, sodium sulphate and a sulphuric acid solution of benzaldehyde-3-sulphonic acid obtained by diluting the sulphonation mixture obtained on treatment of benzaldehyde with fuming sulphuric acid ; and (6) wool is pretreated in a bath containing sodium benzaldehyde-3-sulphonate, sulphuric acid and sodium sulphate, rinsed and dyed from a bath containing 5-nitro-2-amino-1-oxybenzene--->2 - aminonaphthalene - 5,7-disulphonic acid, sulphuric acid and sodium sulphate.  The Specification as open to inspection under Sect. 91 comprises also the use of an aromatic aldehyde, such as phthalaldehyde, which is sufficiently soluble in the acid dyebath, and refers to the dyeing of silk and casein fibres.  This subject-matter does not appear in the Specification as accepted.
Patent GB-449129-A (GB)
Title: Improvements in furnaces fired by liquid or pulverised fuel
IPC: F23C99/00
Filed: 1935-10-02
Abstract: 449,129. Air supply to furnaces. BUGATTI, E., Molsheim, Bas-Rhin, France. Oct. 2, 1935, No. 27195. Convention date, Oct, 8, 1934. [Class 51 (i)] In a furnace fired by liquid or pulverized fuel, the combustion chamber 3 is separated by a heat transferring partition 2 from an air chamber 1 from which heated air for combustion passes to the combustion chamber through passages 8 adjacent the fuel burners 4 which extend through the air chamber, and in order to prevent heat losses the outer wall of the air chamber is protected by an insulating covering 6. Air is fed to the chamber 1 under pressure through a pipe 5.
Patent GB-883208-A (GB)
Title: Improvements in or relating to television cameras
Inventor: GERMANY LESLIE WALTER
IPC: H04N5/228
Filed: 1958-08-25
Abstract: 883,208. Television. PYE Ltd. Aug. 18, 1959 [Aug. 25, 1958], No. 27226/58. Class 40(3). An arrangement for determining the beam alignment of a magnetically focussed television pick-up tube 1 without an image section, said tube having a focussing coil 6 and an alignment coil 8, comprises the combination of said tube, means for producing a square waveform at a recurrence frequency less than the repetition frequency employed for frame deflection of the tube and means for applying the waveform to the focussing coil or the alignment coil so that it is superimposed in the current in the coil. The tube views an image 3, preferably a circle, and its output is applied through an amplifier 4 to a monitor 5. The square waveform has the effect of modifying the line and frame scanning amplitudes of the tube as well as rotating the image whereby there is produced on the monitor two superimposed images, i.e. circles, of different sizes. The direct current through the alignment coils is adjusted so that the circles become concentric. The square waveform is preferably at a sub-multiple of frame frequency. Details of circuit 7 for supplying a stabilised but adjustable current in which may be imposed a square waveform are described with reference to Figs. 2 and 3 (not shown).
Patent GB-171677-A (GB)
Title: Improvements in and connected with pig breaking and like mechanism
IPC: B23D31/00
Filed: 1921-10-14
Abstract: 171,677. Ardelt, R. Nov. 18, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Breaking; power Aawme7's.-In an apparatus for breaking pig iron and other mate. rial resting on an in. clined bed, the hammer is arranged so as automatically to s lid e through the friction lifting-rolls so that the stroke may be of the same length in every position of the apparatus over the bed. The apparatus is carried by an overhead crane which travels over the pig &c. bed. The hammer 1 is of H-section with a shaped head 2 and is very light so as to reduce the ramming effect due to the loose sand bed on which the work rests. A high striking force is given to the hammer by accelerating the gravitational movement by a pair of friction rolls 4a, 4b, driven respectively by gearing 23a 22a and 23b, 22b from the lifting-rolls 3a, 3b which are driven respectively by gearing 21a and 21b, 24b, 24a from a motor 20. The rolls are mounted in a pair of levers 5a, 5<b> pivoted at 6a, 6b and normally controlled by springs 7 or counterweights so that the lifting- rolls are out of contact with the hammer. The levers are connected by toggle arms 8a, 8b to a rod 9 attached to a lever 10, which is pivoted at 11 and operated through a spring connection 15 by a rod 12 bearing on a cam 14 on a shaft which is driven by gearing from the motor. Just before the hammer completes its operative stroke the lever 10 is raised to straighten the toggle and bring the lifting-rolls into action. The hammer is automatically moved nearer the work as the apparatus moves towards the lower end of the bed by slipping through the lifting-rolls and subsequently the stroke is of normal length. In order to hold the hammer in raised position when desired, it is secured by a pair of segmental jaws 31a, 31b operated by a hand-lever 30. The hammer apparatus is carried by a framework 32, Fig. 5, which has hollow guides for the hammer and an operating room 36. The framework is suspended from a carriage 37 movable on wheels on a travelling crane 3Sb and may be lifted vertically for great differences in level. The carriage has hooks 40, 41 for holding magnets for carrying the pigs and broken sows or for supporting a ladle when the apparatus is used as a foundry crane.
Patent GB-773087-A (GB)
Title: Multiple compartment ampoule for use with a surgical syringe
IPC: A61M5/34
Filed: 1953-10-05
Abstract: 773,087. Hypodermic syringes and ampoules. EISENBERG, W. Oct. 5, 1953 [Oct. 4, 1952], No. 27332/53. Classes 81(1) 'and 81(2) An ampoule for use with a surgical syringe comprises a cylindrical body portion 1, a fixed stopper 2 at one end for the penetration of a syringe needle, a piston stopper 4 at the other end and an intermediate stopper 6 dividing the ampoule into two compartments 7, 10, the compartment 7 nearest the piston stopper 4 being indented to contain liquid and the intermediate stopper 6 having a recess 8 on the liquid compartment side so that a membrane-like portion 9 which is'rupturable under liquid pressure separates the compartments 7, 10. The areas of the membrane-like portion 9 and the mouth of the recess 8 are less than the maximum cross - sectional area of the recess 8. The piston stopper 4 is made of rubber, synthetic rubber or a polymer, is coated externally by a wax or collodion cover 5 and has an axial partial piercing for the introduction 'of a plunger of a syringe. The ampoule is used in a syringe having a casing 11, a plunger 12 with a piercing portion 14 having a tapering thread 15 for introduction into the axial piercing of the piston stopper 4 and a needle 26 provided with a mount 25. A sleeve 16 is loosely mounted on the plunger 12 and is pressed forwardly by a spring 17. When the ampoule is inserted in the syringe, the plunger 12 is held within the sleeve 16 by engagement between a flange 13 on the plunger 12 and a detent 19 on the sleeve 16. When the plunger 12 is to be used, a peripheral recess in the flange 13 allows its passage past the detent 19 so that it can engage or partly penetrate the piston stopper 4. Ball and spring catches 21 are provided to prevent the needle mount 25 being secured on the syringe in such a position' that the fixed stopper 2 of the ampoule is pierced by the rear end 27 of the needle. The substances contained in the ampoule are mixed by pressing the plunger 12 against the piston stopper 4 so that the increase of pressure of the liquid in one compartment 7 of the ampoule causes the rupture of the membrane-like portion 9 of the intermediate stopper 6 and the flow of liquid into the other compartment 10 of the ampoule. The needle mount 25 is then caused to override the ball and spring catches or other means so that the rear end 27 of the needle pierces 'the fixed stopper 2 and the injection can be made. If the syringe is to be used for aspiration, the piston stopper 4 is withdrawn by the plunger 12, the screw-threaded taper of which is caused to enter the axial piercing of the piston stopper 4.
Patent GB-308550-A (GB)
Title: Improvements in and relating to anti-slip devices for automobiles
IPC: B60B15/16
Filed: 1928-09-24
Abstract: 308,550. Jurdzick, A. March 30, 1928, [Convention date]. Slipping-preventing attachments to wheels.- An anti-slip device comprises a series of levers 4 each pivoted about its centre of gravity to the wheel and normally held inclined by springs 8. The position of the levers is adjusted by a camring 6 operated by a rack-and-pinion device 9, 10. To prevent noise, the rear ends 4<1> of the levers may be fitted with rubber buffers 13 to contact with the ring 6.